Science

Thursday, 27 November 2025
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Earth
Although it's hard to believe, the Earth's crust consists of 47 percent oxygen.
It is trapped in the soil in the form of various oxides, the most common of which are: silicon dioxide, aluminum oxide, calcium oxide, magnesium oxide, and iron oxide.
Large Magellanic Cloud
Between the Large and Small Magellanic Clouds, there is a belt of hydrogen that connects both galaxies.
There are numerous stars inside the gas belt, concentrating in two places in the belt in the so-call ...
Aurora
In Finnish, the aurora is referred to as "revontulet, " which means "fox fire".
The name comes from the legend of an arctic fox that ran north, spreading its tail sparks of fire shining in the moonlight.
lava
The temperature of lava, depending on its composition, can range from 700 to 1,200 °C.
Beyond Earth, lava can reach even higher temperatures; the record holder is Io, Jupiter's moon, where satellites have recorded lava flows with an average temperature of 1,300 °C (2,370 °F).
Liver
Liver filters blood.
It breaks down toxic particles, such as drugs and alcohol. It also destroys old and damaged blood cells.
Enceladus
Underneath the icy crust is an ocean of liquid water 75 kilometers deep.
Earth
Earth is the third planet from the Sun.
It is also the first planet from the sun to have a natural satellite.
NASA
The first living organism sent to space from the U.S. was a chimpanzee called Ham.
Ham, aboard the Mercury Redstone rocket, blasted off on January 31, 1961. “Ham the Astrochimp” was b ...
Cosmos
The Sun has a diameter of 1.392.684 kilometers.
It is about 109 times larger than the Earth and its mass is approximately 333.000 Earth masses. The Sun accounts for about 99.86 percent of the mass of the solar system.
Tears
Insincere or inauthentic regret is called “crocodile tears.”
The term derived from a belief that crocodiles cry to lure and devour their prey. It is untrue, howe ...